Creatine or vitamin D supplementation in individuals with a spinal cord injury undergoing resistance training: A double-blinded, randomized pilot trial.

What Was Tested

The paper reports a study of Vitamin D, K2, Magnesium and Zinc, published as a randomized controlled trial.

Who Took Part

By PubMed's age tags, the people studied were adults, middle-aged adults and older adults, both men and women.

Vitamin D levels were obtained in all participants before and after intervention.

How the Study Was Run

The design is described as randomized, double-blind and placebo-controlled.

Random assignment meant chance, not the researchers, decided who got Vitamin D, K2, Magnesium and Zinc and who got the comparison, which limits bias.

Blinding on both sides kept the participants and researchers unaware of who received Vitamin D, K2, Magnesium and Zinc.

A placebo (an inactive look-alike) gave the Vitamin D, K2, Magnesium and Zinc group a baseline to be compared against.

The outcome measures, obtained at baseline and after intervention, included: Sum of four skinfolds; Corrected arm muscle area; Seated medicine ball throw; Handgrip strength with dynamometer; Manual wheelchair slalom test and one repetition maximum for Chest press, Triceps, Pec deck and Lat pulldown.

What Was Measured

The subject headings attached to it are Creatine, Dietary Supplements, Hand Strength, Muscle Strength, Resistance Training, Spinal Cord Injuries and Vitamin D.

The authors tagged it with the keywords Spinal cord injury and Vitamin deficiency.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc.

The abstract goes on to report its results in about 6 sentences; this page does not restate them, so read the paper for the findings and their limits.

The publication is from 2018 (The journal of spinal cord medicine), a journal based in England.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.